package collection;

import java.util.ArrayList;
import java.util.List;

public class ListDemo3 {
    public static void main(String[] args) {
        List<Integer> list = new ArrayList<>();
        for(int i=0;i<10;i++){
            list.add(i*10);
        }
        System.out.println("list:"+list);

        List<Integer> subList = list.subList(3,8);//取下标3~7的子集
        System.out.println("subList"+subList);
        //子集扩大10倍
        for(int i=0;i<subList.size();i++){
            subList.set(i,subList.get(i)*10);
        }
        System.out.println("subList"+subList);
        System.out.println("list:"+list);
        //把下标3的元素修改为1000
        list.set(3,1000);
        System.out.println("list:"+list);
        System.out.println("subList"+subList);
        //删除下标0
        list.remove(0);
        System.out.println("list:"+list);

    }
}
